Gas or vapor stove.



W. H. PEARCE.

GAS 0R VAPOR STOVE.

APPLICATION FILED MAR.16, 1914.

Patented June 29 1915.

2 SHEETSSHEET I.

.W mvsmon KTTrmNEYs.

W. H. PEARCE.

GAS OR VAPOR STOVE. APPLICATION man MAR. 16. 1914.

Patented June 29, 1915.

2 SHEETS-SHEET 2.

INVENTUR WITNESSES ATTORNEYS sis ore VAPGIQE, seer s.

Epecificeiipn of Letters Zecent.

Feienterl J 29, 31%35.

seelieetzioii files some is, was. seem so. assess.

To all whom it may concern Be it known shat I. Wmumr H. EPEARQE, a citizen of the Unites Sissies, residing in the city and county of Philadelphia, State of Pennsylvania. have invented a new and useful (his or Vapor Shove. of which the following is s speciriccbion.

My invention consists of novel gas or vapor stove and relates especiaiiy to a top adapted so be assembled with stoves of different sizes.

It further consists of a novei top provided wiih a novei consirucsion and errengernerii of heat radiating ribs or flanges so that the top surface. of such top plate will be highly heated arou'no the pot opening, and severe! diii'erenr articles may thus be heaieci from a single burner.

It further consists of a. novel construction and arrangement of grate or intermediate member and a novel manner of assembling the same with respect to the pot hole, so that the pot or cooking utensil may he raised above the upper surface of the top plate to permit the products of combustion to pass upwardly around the sides of the same so that the contents will he quickly heated or the intermediate supporting plaie or member may be arranged so, time the cooking utensil will have its bottom flush with the upper surface of the top plate. It further consists of a novel construction of ribs or flanges which serve r0 stifien the top and prevent warping or cracking thereof.

It further consists of other novel features of construction, all as will he hereinafter fully set forth.

For who purpose of illusircting my invendrewiii s one form thereof which is at present pre errefi by me, since the same will give in practice satisfactory and reliable resulrs', although it is to he understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangeme t and organization of these instrnmentslities as herein shown and describsfi.

Figure 1 represents a perspective view of a portion of a gas or vapor stove embodying my invention. Fig. 2 represents, in detached veiiiion, showing" a somewhat different type r from that seen in Fig. 1. Fig. 3 represents in perspecsive a. fastening device employed. Fig. 7 represents e sect-ion on line Fig. 2. 8 represents a sectional elevation of a portion ofe. gas or vepor stove embodying my invention and showing the ihtermefiie'te memioer or grate'in diiieregit positions with respect thereic. Fig. 9 represents asectional elevation of a portiozi of my device showing" more clearly the manner of fastening the cop piste so the stove. 10 represents in detz'icheci position a perspective view of the underside of she to piers Similar seiner-e. s of reference incii'c sr'e corresponding parts in the figures. ,7

Referring so the orewings, 1' designates a gas or vapor stove haviiig stop 2 provided with the 'eiziiig'3 which covers the burners g4 r0 wh'ic any desired type offuel is con ducted through the coriduit 5, and; the admission of fuel to each burner being controlled by a valve 6 while the admissionof sir thereto is controlled by the; usual type of air regulating means 7.

In accordance with my present invention, thegrzrting 3 is replaced by a novel top or cover plate 8 the construction of which will now be ex 'loined. This top 8 is provided wish are pics oropenings 9 therein and e haters 1y extending flange 10 preferably extending-beneath the bottom face of the late, as will be best uiidersisooc'i by reference to Fig. 10. This rib or flange 10 forms the bottom wall of the op'er ing 9 and its thicie mess .is such that it terminates ben ath the top surface of the top 8 so as to form :1 Sup} port for a cover plete 11, see Fig. 5, so their soclrcover' plate will he flush with the top of the member 8. Each cover plate 11 may, if desireo, he proviried with a port hole or opening which is adzip'rerl so receive a. smaller cover plate 12. The aririular rib or flange 10. is provir'led with apertures 13 therethro'ugh which conform to the shape of lugs 14 of an intermediate grate or member 15. In the ,present instance, I have shown for purposes of illustration three lugs 14 and three apertures or recesses 13 with which they coiiperate but it will of course be understood that over the aperture or opening 18 which may be of any desired contour but which, in the present instance, is shown as having the curved walls 19 so that the greatest width of the disk is in flanges 17 v Secured to the bottom of the plate which comprises the top 8 and preferably integral therewith are a series of independent depending ribs or flanges 20, 21, 22,23 and The rib or flange 20 extends laterally and transversely of'the top 8 in close proximity proximity to the top ribs or to a port hole 9 while the ribs or flanges 21,

and 22 extend longitudinally in proximity to the same port hole 9 and are spaced from the rib or flange 20 so as to form the openings 25 and 26. The ribs or flanges 23 and 24 have one end, as 27 and 28, located outwardly of thefianges 21 and 22 and 0 enings 29 and 30 respectively are forme between the adjacent ends of such flanges. Theopposite ends of the ribs or flanges 23 and 24 converge toward each other and terminate in proximity to an adjacent port hole opening 9, preferably cast inte ral with the flange IOthereon. One end 0 the top 8 is provided with a downwardly directed rib or flange 31 which forms a continuation of the downwardly directed side flanges 32 and 33 respectively. 34 and 35 designate curved ribs or flanges extending from the end 36 of the top 8 inwardly and outwardly toward the side flanges 32 and 33 respectively, and terminating as .at 37 and 38 res ectively.

In order to provide for the adJustment of the to with resp'ect to various sized openings 0 different stoves after the top grating '3 has been removed, I rovide the locking members 39'having as 0t 40 therethrough through which extends the screw-bolts or other fastening devices 41 which latter also pass through the top plate8, and are rovided with nuts 42 which are prevented rom rotation owing to the provision of a groove 43in a faceof the locking device 39, The forward end of such member 39 is downwardly deflected as at 44 to form a lug having its outer face preferably beveled or in clined, as at 45, so that it will engage the vide at one end of the top 8 the transversely extending slots 49 which are centrally located between the ribs 34 and 35 and the transversely extendingslots 50 on each side of such rib and which are weakened in proximity to such ribs, as indicated at 51, so that the corner next to the flue 48 may be readily broken off by a hammer or other implement so that the parts will appear as seen in Fig. 5.

The operation of my novel invention and the manner of applying the interchangeable top to gas or vapor stoves now in use is as follows :The top 8 is assembled with respect to the stove, as best seen in Figs. 1, 5, 8 and 9, so that the flanges 31, 32 and 33 rest on the top 2 and the fastening devices 39 are then moved outwardly into engagement with the downwardly inclined walls 46 of the top 2, whereupon the set screws 41 are tightened thus fixing the-top 8 in assembled condition with respect to the top of the stove. If it is desired, thepot or cooking utensil may be placed so as to rest on the flange 10 or on the top surface of the plate or member 8 and owing to the novel construction and arrangement of the ribs or flanges on the under surface of the plate the top surface surrounding the pot opening will be highly heated. If it is desired to quickly heat the cooking utensil, the grate 15 is placed over a pot hole 9 so that the lugs 14 rest on the flange 10. This will allow the heat from the burner to escape around the pot or cooking utensil and after the cooking utensil is at a boiling point, the member 15 is turned until the lugs 14 register with. and are received in the openings 13. The pot hole is now entirely covered and the heat is deflected under and around the top of the stove coming incontact with the depending flanges 20, 21, 22, 23 and 24, so that the heat absorbed by said flanges is rgdiated to the upper surface of the top p ate.

'35 also act as radiating ribs and serve to retard the passage of the products of combustion from beneath the top plate 8, and

also to stiffen the top plate at such point.

While I have referred to the construction When the pot hole-is covered, the products surrounding ilie pol; opening es consisring of flonges, ii. is lo be understood libel;- such term is to include ribs or other projections errenged as set forth and serving to re.- diste and distribuee the best so the upper face of the top place.

om aware that it; has heretofore been proposed in the are to employ means to distribute no heat from one pol opening lo another, such as for example in rho poienr lo Deon ct o2. 792562, and in many pclsenls prior therein but my invention is clearly diiiereniioted from such devices since I employ on the under face oithe lop plate ribs, lugs, flanges or projections, the function of which is to collect and radiole die hest to the upper face of the top plate so that the surface surrounding the pol; opening is highly heated and to hereinbefore referred '50 prior oonslructions ll make no claim.

I do not intend to limit myself to the particular construction of lop plate or pet supporting member hereinbefore described, but reserve the right to make SllCll changes, variations, modifications, etc, as come roperly within the scope of the appended c. sims.

1% will now be apparent that l have devised e novel and useful construction of s gas or vapor stove which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instonce, shownand described a preferred embodiment thereof which will be found in practice to give satisfactory and reliable results, it is to be understood that the some is susceptible of modification in various srsioulers without departing from the spude or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, whet l claim as new and desire to secure by Leeters Potent, is

1. A top plate for gasor vepor cloves comprising e metal plate provided with e plurality of pot openings and having cl; one end and two sides only marginal downwardly deflected portions, said plate hoving .a series of independent depending flanges some of .which extend subslsntially laterally and the others longitudinally upon opposite sides oi one of said pot openings in close proximity thereto.

2. A top plate for gas or vapor stoves comprising o metal plate provided with a plurality of pot openings and having at one end and two sides only marginal downwardly deflected portions, said plate having a series of independent depending flanges some of which extend substantially laterally and the others longitudinally upon opposite sides of one of said apot openings in close proximity thereto on flanges between said o ening and the ad acent opening.

'3. A lop plcle for gas or vapor stoves 7 comprising e metal plate provided with c plurality of pot openings end hsving at one end and two sides only morginsl down wsrdly deflected portions, sold plate having e series independent depending flanges some of which extend substantially later" oily and the others longitudinally upon opposits sides of one of said polaopenings in close proximity thereto and flanges between sold opening and the adjacent opening, the edjecent flanges being convergent.

l. A top plate for gas or vapor stoves comprising e'melal plate provided with a. plurality of pot openings and having ct one end and two sides only marginal downwardly deflected portions, said plate having boring e pol. hole with an inwardly laterally exfiending flange forming the bottom wall of said hole and having radial apertures and depending flanges integral with said flange and extended upon a plurality of sides of said hole, and a member having lugs conforming to said apertures and its top face provided with ribs radially extended, said member having an aperture with curved walls between said ribs with the grealest width of the plate in proximity to said ribs and the letter extended inward beyond the inner margin of the piste.

6. A top plate for gas or vapor slzoves having a. pot hole with an inwardly laterally extending flange forming the bottom well of said hole and having radiel apertures, and 9. member having lugs conforming to said apertures and its top face provided with ribs radially extended, said member hovingsn aperture with curved wells between soid ribs, with the greatest Width of the plate in proximity to said ribs and the latter extended inward beyond the inner margin of the plate, the bottom of said top late having independent depending flanges Integral with the first-named flange and extending laterally transversely of the top plaids and disposed in proximity to said pot 7. A top late for gas or vapor stoves havin s pot ole with an inwardly laterally exten ing do e forming the bottom wall of said hole and aving radial apertures. and e member having lugs conforming to said apertures and its lop face provided with ribs radially extended, said member having an aperture with curved walls between said ribs, with the greatest width of the plate in a mwez proximity to said ribsand the latter extended inward beyond the; inner margin of the plate, the bottomof said. top: plate having wndependent depending flanges inbegnal 3% with the first-named flange and extending.- laterally transversely of the top plate and disposed in. proximity tosaid pot hole and- 

